Sena Pakkallo was a physician, holding the title of doctor, and she was in service to the Galactic Empire both before and during the Galactic Civil War. Throughout her time in the medical field, she was stationed on several less-than-ideal planets, which led to a growing sense of dissatisfaction with the demands placed upon her. Eventually, she chose to join the Rebel Alliance following their intervention on Bakura.
Pakallo held a supervisory position in the medical field. For a brief period, she was stationed on Reuss VIII, an agriworld situated in the Outer Rim, where she gave guidance on hygiene practices to the planet's inhabitants.